Ewen Maddock Dam was constructed in two stages in 1976 and 1983 across Addlington Creek, a tributary of the Mooloolah River.

Located on the Sunshine Coast, Ewen Maddock Dam is part of South East Queensland’s drinking water supply.

It is an un-gated dam, meaning that when it reaches 100 per cent capacity, water flows over the spillway and safely out of the dam. If you would like to be notified when Ewen Maddock Dam begins to spill, please sign up to our free dam release notification service.

Recreation

Ewen Maddock Dam is a popular recreation destination for locals and visitors. Along with boating and fishing, the multi-use trails are particularly popular, accommodating walkers, horse and bike riders.

Horse and bike riders, please ensure that you are only using the multi-use trails, not the trails signed as walking only.